We present results of our numerical calculation of the mass spectrum for isospin one-half and spin one-half non-strange baryons, i.e. the ground and excited states of the nucleon, in quenched latticeâ€¦ (More)

We study excited states of the nucleon in quenched lattice QCD with the spectral analysis using the maximum entropy method. Our simulations are performed on three lattice sizes 16 3 Ã— 32, 24 3 Ã— 32â€¦ (More)

We discuss signatures of bound-state formation in finite volume via the LÃ¼scher finite size method. Assuming that the phase-shift formula in this method inherits all aspects of the quantum scatteringâ€¦ (More)

The domain wall fermion (DWF) method, with its almost perfectly preserved chiral symmetry on the lattice, makes the calculation of the nucleon axial charge particularly easy. By maintaining chiralâ€¦ (More)

We propose S = +1 baryon interpolating operators, which are based on an exotic description of the antidecuplet baryon, like the diquark-diquark-antiquark structure. By using one of the new operators,â€¦ (More)

We study the color confinement, the q-Â¯ q pair creation and the dynamical chiral-symmetry breaking of nonperturbative QCD by using the dual Ginzburg-Landau theory, where QCD-monopole condensationâ€¦ (More)

The quantum chromo-dynamics (QCD) may not preclude the presence of the multi-quark hadrons such as tetraquark (qqqÌ„qÌ„), pentaquark (qqqqqÌ„), dibaryon (qqqqqq) and so on, because of the colorâ€¦ (More)

We investigate the role of QCD-monopoles for the UA(1) anomaly in the maximally abelian gauge within the SU(2) lattice gauge theory. The existence of the strong correlation between instantons andâ€¦ (More)

We present a preliminary domain-wall fermion lattice-QCD calculation of isovector vector and axial charges, g V and g A , of the nucleon. Since the lattice renormalizations, Z V and Z A , of theâ€¦ (More)